LXR linux-old/include/linux/vt

   1#ifndef _VT_KERN_H
   2#define _VT_KERN_H
   3
   4/*
   5 * this really is an extension of the vc_cons structure in console.c, but
   6 * with information needed by the vt package
   7 */
   8
   9#include <linux/config.h>
  10#include <linux/vt.h>
  11#include <linux/kd.h>
  12
  13/*
  14 * Presently, a lot of graphics programs do not restore the contents of
  15 * the higher font pages.  Defining this flag will avoid use of them, but
  16 * will lose support for PIO_FONTRESET.  Note that many font operations are
  17 * not likely to work with these programs anyway; they need to be
  18 * fixed.  The linux/Documentation directory includes a code snippet
  19 * to save and restore the text font.
  20 */
  21#ifdef CONFIG_VGA_CONSOLE
  22#define BROKEN_GRAPHICS_PROGRAMS 1
  23#endif
  24
  25extern struct vt_struct {
  26        int vc_num;                             /* The console number */
  27        unsigned char   vc_mode;                /* KD_TEXT, ... */
  28        struct vt_mode  vt_mode;
  29        int             vt_pid;
  30        int             vt_newvt;
  31        wait_queue_head_t paste_wait;
  32} *vt_cons[MAX_NR_CONSOLES];
  33
  34extern void (*kd_mksound)(unsigned int hz, unsigned int ticks);
  35extern int (*kbd_rate)(struct kbd_repeat *rep);
  36
  37/* console.c */
  38
  39struct console_font_op;
  40
  41int vc_allocate(unsigned int console);
  42int vc_cons_allocated(unsigned int console);
  43int vc_resize(unsigned int lines, unsigned int cols,
  44              unsigned int first, unsigned int last);
  45#define vc_resize_all(l, c) vc_resize(l, c, 0, MAX_NR_CONSOLES-1)
  46#define vc_resize_con(l, c, x) vc_resize(l, c, x, x)
  47void vc_disallocate(unsigned int console);
  48void reset_palette(int currcons);
  49void set_palette(int currcons);
  50void do_blank_screen(int gfx_mode);
  51void unblank_screen(void);
  52void poke_blanked_console(void);
  53int con_font_op(int currcons, struct console_font_op *op);
  54int con_set_cmap(unsigned char *cmap);
  55int con_get_cmap(unsigned char *cmap);
  56void scrollback(int);
  57void scrollfront(int);
  58void update_region(int currcons, unsigned long start, int count);
  59void redraw_screen(int new_console, int is_switch);
  60#define update_screen(x) redraw_screen(x, 0)
  61#define switch_screen(x) redraw_screen(x, 1)
  62
  63struct tty_struct;
  64int tioclinux(struct tty_struct *tty, unsigned long arg);
  65
  66/* consolemap.c */
  67
  68struct unimapinit;
  69struct unipair;
  70
  71int con_set_trans_old(unsigned char * table);
  72int con_get_trans_old(unsigned char * table);
  73int con_set_trans_new(unsigned short * table);
  74int con_get_trans_new(unsigned short * table);
  75int con_clear_unimap(int currcons, struct unimapinit *ui);
  76int con_set_unimap(int currcons, ushort ct, struct unipair *list);
  77int con_get_unimap(int currcons, ushort ct, ushort *uct, struct unipair *list);
  78int con_set_default_unimap(int currcons);
  79void con_free_unimap(int currcons);
  80void con_protect_unimap(int currcons, int rdonly);
  81int con_copy_unimap(int dstcons, int srccons);
  82
  83/* vt.c */
  84
  85extern unsigned int video_font_height;
  86extern unsigned int default_font_height;
  87extern unsigned int video_scan_lines;
  88
  89void complete_change_console(unsigned int new_console);
  90int vt_waitactive(int vt);
  91void change_console(unsigned int);
  92void reset_vc(unsigned int new_console);
  93
  94#endif /* _VT_KERN_H */
  95